Preliminary assessment of the feasibility of field evaluation of heat exchanger tube structure using ultrasonic guided wave with exterior approach-Reference-Cited by-同舟云学术

Preliminary assessment of the feasibility of field evaluation of heat exchanger tube structure using ultrasonic guided wave with exterior approach

Published:2024-02-01 Issue:2 Volume:66 Page:103-108
ISSN:1354-2575
Container-title:Insight - Non-Destructive Testing and Condition Monitoring
language:en
Short-container-title:insight

Author:

Kim Beomjin¹,Cho Younho²,Kim Jeongnam³,Zhang Jiannan¹,Jeong Kyoung-Sik⁴,Baek Yunhyeon⁴

Affiliation:

1. Mechanical Systems Design Department, Graduate School of Mechanical Engineering, Pusan National University, South Korea

2. School of Mechanical Engineering, Pusan National University, South Korea

3. Nuclear Safety and Protection, Pusan National University, South Korea

4. Pocheon Green Energy Corporation, South Korea

Abstract

The integrity of heat exchanger (HE) tubes is essential for power plant safety and efficiency. Numerous tube assessment techniques have been proposed, including eddy current inspection and the guided wave method. However, they mainly evaluate from the inside of the tubes. Hence, when the interior region of a tube wall is not accessible, inspection is difficult. To overcome this issue, a new guided wave device is fabricated that inspects from the exterior of the heat exchanger tubes. Using this device, a few sample heat exchanger tubes are selected and inspected in a field evaluation during an overhaul period. Furthermore, the feasibility of the device is evaluated. This new approach is expected to contribute to the efficient evaluation of heat exchanger tubes.

Publisher

British Institute of Non-Destructive Testing (BINDT)

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